Paving structure



w. CfBURRELL PAVING STRUCTURE Nov. 25, 1941.

4 Sheets-Shet 1 Filed April 14, 1937 INVENTOR. WILL/HM Bl/RRELL BYATTORNEY.

Nov. 25, 1941. i w. c. BURRELL 2,263,824

PAVING STRUCTURE Filed ApriL 14, 1937 4 Sheets-Sheet 2 I v r i i T n 2729 INVENTOR.

M ILLIFIM: BURRELL BY Nov. 25, 1941.

' w. c. BURRELL' 2,263,824

PAVINGISTRUGTURE Filed April 14, 1937 4 Sheets-Sheet 3 INVENTOR. WILL/HMC. BURRELL BY Nov. 25, 1941. w. c. BURRELL PAVING STRUCTURE Filed April14, 1957 4 Sheets-Sheet 4 47 I INVENTOR.

' W/LLmM CBURRELL ATTORNE] Patented Nov. 25, 1941 2,2sas2t UNITED STATESe TENT orrics Application April 14, 1937, Serial No. 136,869

13 Claims.

This invention relates to paving construction in which a novel andimproved expansion joint unit is provided at intervals to divide thepaving into spaced apart sections and the spaced apart secons are joinedby a jointed load transmitting device, projecting through the expansionjoint unit to hold the sections in proper alignment and prevent theadjacent ends being displaced relatively to each other. The inventionfurther relates to a staking means of novel and improved design forsecuring the expansion joint unit in place upon a suitably preparedfoundation, over which the concrete slabs are poured in place.

The expansion joint unit may be advantageously formed of complementarysections, preferably of somewhat similar construction and hollowed out,so that when fitted together in the paving structure they will provide ahollow chambet. The staking means is of a construction to prevent anyaccess of foreign material into the chamber of the joint, andparticularly t exclude the poured cement from interfering with theoperation of the jointed load transmitting devices.

For a better understanding of the invention reference is made to theaccompanying drawings, in which:

Fig. 1 is a cross-sectional view of a section of pavement provided withan expansion joint unit embodying the invention;

Fig. 2 is a perspective view of one end of a section comprising theexpansion joint unit;

Fig. 3 is a cross-sectional view. of a section of pavement provided withthe expansion joint unit having the novel and improved load transmittingmeans projecting therethrough and both staked in position;

Fig. 4 is a top plan view ofone of the load transmitting means; j

Fig. 5 is a cross-sectional view taken through the overlapped ends ofthe load transmitting means;

Fig. 6 is a cross-sectional view of a section of the pavement providedwith the expansion joint unit having the novel and improved loadtransmitting means projecting therethrough'and both staked in position;

Fig.7 is a side elevational view of the expansion joint unit and thestaking means in place on the foundation with the load transmittingmeans removed and before the paving sections are poured.

Fig. 8 is a perspective view of the expansion joint unit with the loadtransmitting means and stakes assembled for insertion in the pavement;

Fig. 9 is a perspective view of one of the staking devices;

tom' sealing member.

Figs. 10. and 11 are perspective views ofmodifications for staking theexpansion joint unit in place; and

Fig. 12 is a plan View of the link provided in Fig. 11 for receiving thestakes.

Referring to the drawings in which like numerals are used to designatelike parts, numeral 1 designates a foundation which has been leveled offor otherwise prepared to receive concrete paving applied in sections 2which are poured in place over the foundatipn with expansion joint units3 separating and dividing the sections at spaced intervals. Theexpansion joint strips are secured in place upon the foundation beforethe sections 2 are poured around them.

The expansion joint unit is preferably made of any suitable materials.Thermoplastic materials which are readily molded into suitable form andwhich are plastic or elastic are especially suitable. Rubber and asphaltcompositions are particularly suitable. Or the expansion joint unit maybe made of more rigid material, such as wood, pulp board, metal or thelike which may be treated with a suitable waterproofing material. Inorder that the expansion joint unit may be light in construction and bereadily assembled, it is advantageously made in complemental sections 4and 5 which may be similar in construction, each being provided with amarginal flange 6 and any number of intermediate projections I. Theseintermediate projections may be of a y shape or design but arepreferably disposed so that they will be formed, directly opposite theprojections on the other section. The marginal flanges surrounding thesections are preferably continuous so that when they are in abuttingrelation, with the sides having the projections laid face to face, thein: terior of the joint unit will have a chambered portion completelysealed by these marginal flanges which prevent any foreign substancessuch as water or the like gaining access into the chamber of the joint.Substantially the same result could be obtained by having one of the sections constructed as above described and faced with a smooth surfacedclosure section, The smooth surfaced closure would seat upon the edgeflange and the intermediate projections. The bottom edge of thesectional expansion joint unit may advantageously be provided with asealing 3 strip 8 of any suitable flexible metal such as copper or thelike. This is preferably provided with a beading 9 interposed betweencorners Iii which are adapted to receive the lower corners of t pa si nJo t u it and s at i on the no- Extensions H are provided on the sealingmember to project and be embedded into the adjacent ends of the concretesections.

A crown seal 12 is also provided 'for the upper edge of the expansionjoint unit. This may be of the same type as the bottom seal, or it mayadvantageously be made in two parts essentially similar in constructionwith one part attached to one of the expansion joint sections and theother part attached to the other section. Portions l3 of the sealingparts are positioned to overlap with each other, and other parts M areprovided for anchoring with the paving sections. This top seal may bemade of any suitable material, it being preferably formed of the samelight flexible metal as the bottom seal. The parts [4 may be reenforcedby retroverting the end I 5 of the sealing part upon the bent out flangeportion l6. An intermediate flange l! is provided extending upward ashort distance from the top edge of the expansion joint section, theflange being disposed parallel with the face of the expansion jointsection. These provide suitable edges against which a finishing tool maybe operated to smooth off the concrete above the joints. These uppersealing parts may be conveniently attached to the upper edges of theexpansion joint sections by any suitable means, such as nails I8,disposed at suitable spaced intervals.

If desired the ends as well as the top and bottom of the expansion jointunit may likewise be sealed with a sealing strip similar to that whichis employed on the bottom edge or to that which is applied on the upperedge. The chambered sectional expansion joint structure permits thematerial, when the sections or one of them are made out of compressiblematerial, to be compressed within the chambered portion, therebypreventing the expansion joint material from being squeezed from thespace between the paving sections.

The expansion joint units are preferably installed before the paving ispoured, and a suitable staking means l9 may be employed for holding theexpansion joint unit in place. A staking means disposed at alternateintervals on each side of the expansion joint unit is preferred. Asuitable staking means is typified by an angular member provided withone portion 20 adapted to engage the inner side of one of the sectionsand another portion 2| disposed to project through a recess 22 providedin the section. A recess 23 may be conveniently provided near the end ofportion 2! to receive a staking device 24.

With these expansion joint units, it is desirable to provide loadtransmitting meansfor securing the paving sections 2 in alignment andholding the expansion joint unit in place. This means is preferably inthe form of channel members 25 and 26 having a back portion 21 and sideflanges 28 extending therefrom. The ends of the two sections areoverlapped with the side flanges facing each other in overlappingrelation and alternately disposed, with a fastening means, such as abolt 29 inserted for holding the plates in position for handling andproperly positioning same in the paving. The bolt is fitted so that theflange 28 of the corresponding sections will be close together andprovide only a limited pivotal movement upon the bolt. A filler 30 maybe conveniently placed within the space between the overlapping ends,thereby requiring a bolt which is merely heavy enough for holding theoverlapping sections together while they are being as sembled inposition. The jointed structure of mitting device, particularly where afiller block is not used. It is desirable, too, to exclude the concretefrom a space around the overlapped ends, and means may be convenientlyassociated with the staking means IQ for this purpose. Metal means 32may be formed with a lower blade portion 33 adapted to be driven intothe foundation. The upper portion is formed into a box-like structure 34having end walls 35 and 36, the latter having a tapered extension 31that may be driven into the side of the expansion joint unit for holdingthe stake in place. Portions 38 and 39 are bent to provide side wallsfor the box-like structure, these being of the same height as the endwalls exclusive of the tapered portion 31. One side of the box-likestructure is recessed at 43, cut in the form of a U to conform to thecontour of the channel members in order that the stakes may be readilyslipped over the ends of the channel members and pressed against theexpansion joint unit with the tapered portion 31 biting therein. Thestaking means not only functions to secure the expansion joint unit andthe load transmitting device in position but also to exclude anymaterial flowing into the chamber within the expansion joint unit andinto the chamber or space between the overlapping end of the loadtransmitting sections.

In Fig. 10 there is disclosed a modified form of the staking deviceillustrated in Figs. 3, 6, 7, 8, 9 and 10. The box-like structure forfitting over the end of the load transmitting device is the same.However, in lieu of the blade 33, side walls 38 and 39 may be providedwith a fin 4| having the. ends 42 disposed at a suitable angle theretofor receiving a stake 43 projected through recesses 44 provided in theends 42.

Figs. 11 and 12 disclose another staking construction, this beingparticularly suitable for being driven through the expansion joint unitwithout any holes being first formed. The staking device is in the formof a clip 45 having one or both ends tapered at 46. Recesses 41 areprovided in the ends of the clip sufliciently spaced apart so thatstakes 48 may be driven therethrough on either side of the expansionjoint unit.

While I have illustrated several embodiments of the invention anddescribed same in detail, it

will be understood that there may be various changes and modificationswithin the scope of the invention and the appended claims.

I claim: I

1. A load transmitting means comprising a plurality of U-shaped channelmembers pivotally connected with the channels of said members facingtoward each other and the side flanges of the sections in overlappingrelation and alternately disposed.

2. A load transmitting means comprising a plurality of pivotallyconnected U-shaped channel members disposed in end to end overlappingrelation with the channels of said members facing toward each other andthe side flanges of the U sections in overlapping relation andalternately disposed.

3. In a paving construction composed of spaced apart paving sections, anexpansion joint strip interposed between the sections, pivotallyconnected channel sections projected through the joint strip andembedded in the ends of adjacent paving sections, and means providedadjacent the strip to space the paving sections from a portion of thechannel sections.

4. In a paving construction composed of spaced apart paving sections, anexpansion joint strip interposed between the sections, pivotallyconnected channel sections projecting through the joint strip andembedded in the ends of adjacent paving sections, and a box-like meansfitted over the end of the channel sections to abut the joint strip andspace the paving sections from a portion of the channel sections.

5. A load transmitting means comprising a plurality of pivotallyconnected members, one member being an angle bar and the other memberbeing pivoted thereto and disposed in relation to a side of the anglebar for limiting the relative pivotal movement of the two members.

6. A load transmitting means comprising a plurality of pivotallyconnected members, one member being an angle bar and the other memberbeing pivoted thereto and disposed in relation to a side of the anglebar for limiting the relative pivotal movement of the two members, andcovering means having a recess of a contour to receive the members. 7,

7. In combination with a joint strip and a sectional load transmittingmeans having the sections connected together and projecting through thejoint strip, a covering means covering the connection between thesectional members of the load transmitting device, and stake receivingmeans on the covering means.

8. A load transmitting means comprising a plurality of members disposedwith adjacent ends in overlapping relation, the end of one member beingin the form of a U-shaped channel and an end of the adjacent memberdisposed within the U-shaped channel between the side flanges of theU-shaped member.

limit relative angular movement of the members.

9. A load transmitting means comprising a plurality of U-shaped channelmembers disposed in end to end overlapping relation with the channelsfacing toward each other and with the respective opposite side flangesof the U-shaped members arranged sufiiciently close together to 10. Aload transmitting means comprising a plurality of overlapping membersdisposed to permit relative angular movement to each other, one memberbeing a bar with spaced apart flanges disposed at an angle to a baseportion to provide a socket and the other member having an end portionprojecting into the socket, a loose connection for holding theoverlapped portions together and permitting limited relative pivotal andslidable movement of the projecting end of one member between the spacedapart angle flanges of the other member.

'11. A load transmitting means for joints in concrete paving comprisinga plurality of sections slidably and pivotally connected together bymeans of openings in the adjacent ends of the sections and a pinprojecting in said openings, the opening in at least one of the sectionsbeing greater than the cross section of the pin to provide relativeslidable movement, and means on one section defining a range of movementfor limiting the pivotal movement of the sections.

12. A load transmitting means for joints in concrete paving comprising aplurality of sections, one of which sections has a socket for receivingthe end of another section, a pin and slot for pivotally and slidablyconnecting the sections together, and means for limiting the relativepivotal and slidable movement'oi the sections.

13. A load transmitting means for joints in concrete paving comprising aplurality of sections, one of which has 'a socket for receiving the endportions of another section, pin means for pivotally connecting thesections together, and an elongated slot provided to receive the pinconnection to permit the sections to slide relatively to each other, andthe walls of the socket disposed to limit the relative pivotal movementof the sections.

WILLIAM C. BURRELL.

